Thanks, guys! I now have, uh, 4 workable solutions. I love how R gives you 18
different ways of doing the same thing . . .
On Apr 15, 2014, at 7:05 PM, João Veríssimo wrote:
> Perhaps rev() can help?
>
> Maybe something like:
>
> x <- c("a", "b", "c")
> c(x[1], rev(x[2:3]))
>
> João
> On Tue, 2014-04-15 at 17:52 +0000, Hofmeister, Philip wrote:
>> this is probably more appropriate for a general R listserv, but i'm more
>> likely to get an answer i can decipher here. apologies also for what is
>> likely a simple fix, but i can't seem to find the right term or syntax to
>> get this to work without writing ugly code.
>>
>> i want to swap values in a vector, e.g.
>>
>> x <- c(1, 2, 3)
>> [1] 1 2 3
>>
>> and get back
>>
>> 1 3 2
>>
>> i can do this by saving the 2nd or 3rd element of the vector elsewhere,
>> replacing one of the vector elements (x[3] <- x[2]), and then restoring the
>> stored value, but that seems wasteful. surely there is a function like
>> swap() or std::swap(a, b), but i can't seem to find anything. anyone have
>> any ideas?
>>
>> ph
>>
>>
>>
>
>
